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Chapter 25: Q. 12 (page 708)

ReproduceFIGUREQ25.12on your paper. Then draw a dot (or dots) on the figure to show the position (or positions) at which the electric potential is zero.

Short Answer

Expert verified

The reproducing diagram is

Step by step solution

01

Step: 1 Finding the value for diagram:

Position of two charges at potential is

U(x)=2q4πϵ0|x|+(−q)4πϵ0|x−3|

Where localid="1648820269317" x=0in localid="1648820266806" 2qcharge and localid="1648820252518" x=3in localid="1648820260629" -qcharge.

02

Step: 2 Finding value and reproducing diagram:

Substituting Ux=0and the value of xis obtained and the diagram is

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Most popular questions from this chapter

Two10-cm-diameter electrodes 0.50cmapart form a parallel plate capacitor. The electrodes are attached by metal wires to

the terminals of a 15Vbattery. After a long time, the capacitor is disconnected from the battery but is not discharged. What are the charge on each electrode, the electric field strength inside the capacitor, and the potential difference between the electrodes

a. Right after the battery is disconnected?

b. After insulating handles are used to pull the electrodes away from each other until they are 1.0cmapart?

c. After the original electrodes (not the modified electrodes of part b) are expanded until they are 20cmin diameter?

A disk with a hole has inner radius Rin and outer radius Rout.The disk is uniformly charged with total charge Q. Find an expression for the on-axis electric potential at distance z from the center of the disk. Verify that your expression has the correct behavior when RinS0.

Two positive point charges q are located on the y-axis aty=±12s.

a.Find an expression for the potential along the x-axis.

b.Draw a graph of V versus x for -∞<x<∞. For comparison, use a dotted line to show the potential of a point charge 2qlocated at the origin.

An electron moves along the trajectory of FIGUREQ25.3from itof.
a Does the electric potential energy increase, decrease, or stay the same? Explain.
bIs the electron's speed at fgreater than, less than, or equal to its speed at i? Explain.

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